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At a very low level, a hardware designer will decide what means 1 and what means 0. For example, they might say "Anything above 3.7V means 1, and anything below 1.9V means 0, and any voltage in between should be avoided and shouldn't happen. And then they design a NAND gate with three inputs and say "If all three inputs are above 3.7V then the ...


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Yes. It is called RDMA and techniques like Infiniband rely on it.


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Have a look at the Cray X-MP super computer. It uses SRAM instead of DRAM.


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The number of entries in the TLB is limited and keep in mind that there are multiple levels of TLBs. So the higher the level, the more entries they typically have. For more detailed information have a look at the following page for Skylake. Wat you are referring to is a minor page fault; so there is no matching entry for a page in the TLB, but the page is in ...


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The Linux kernel uses a (very rough) approximation of LRU, which is the reason why you find mention of LRU, even though it is not the true LRU algorithm. Here is a description taken from the source: Per node, two clock lists are maintained for file pages: the inactive and the active list. Freshly faulted pages start out at the head of the inactive list and ...


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